问题
单项选择题
You believe that the likelihood of bankruptcy is 30% for Rusty Roof Supply. You also believe that Home Pedot has a 20% of entering bankruptcy. You believe that the two events are independent. What is the probability that at least one of the companies will enter bankruptcy
A．
| A. 6.0%. |
B．
| B.4.0%. |
C．
| C.44.0%. |
答案
参考答案：C
解析：The probability is given by [1-(1-30%)×(1-20%)]=44.0%.